<template>
  <div className="my-counter">
    <button type="button" className="btn btn-light" @click="obj.goods_count--">-</button>
    <input type="number" className="form-control inp" v-model="obj.goods_count">
    <button type="button" className="btn btn-light" @click="obj.goods_count++">+</button>
  </div>
</template>

<script>
export default {
  props:{
    obj:Object
  },
  watch:{
    obj:{
      deep:true,
      handler(){
        if (this.obj.goods_count<0){
          this.obj.goods_count=0
        }
      }
    }
  }
}
</script>

<style lang="less" scoped>
.my-counter {
  display: flex;

  .inp {
    width: 45px;
    text-align: center;
    margin: 0 10px;
  }

  .btn, .inp {
    transform: scale(0.9);
  }
}
</style>